// bsp4.cpp : Defines the entry point for the console application.
//

#include "stdafx.h"
#include <stdio.h>
#include <stdlib.h>

int _tmain(int argc, _TCHAR* argv[])
{
	char *number =		"73167176531330624919225119674426574742355349194934"					
						"96983520312774506326239578318016984801869478851843"
						"85861560789112949495459501737958331952853208805511"
						"12540698747158523863050715693290963295227443043557"
						"66896648950445244523161731856403098711121722383113"
						"62229893423380308135336276614282806444486645238749"
						"30358907296290491560440772390713810515859307960866"
						"70172427121883998797908792274921901699720888093776"
						"65727333001053367881220235421809751254540594752243"
						"52584907711670556013604839586446706324415722155397"
						"53697817977846174064955149290862569321978468622482"
						"83972241375657056057490261407972968652414535100474"
						"82166370484403199890008895243450658541227588666881"
						"16427171479924442928230863465674813919123162824586"
						"17866458359124566529476545682848912883142607690042"
						"24219022671055626321111109370544217506941658960408"
						"07198403850962455444362981230987879927244284909188"
						"84580156166097919133875499200524063689912560717606"
						"05886116467109405077541002256983155200055935729725"
						"7163626956188267042825248360082325753042075296345";
	int max_prod = 0;
	int prod = 1;
	char digit[1];
	for(int i = 0; i < 1000; i +=5)
	{
		//calculate product of 5 consecutive digits
		for(int j = 0; j < 5; j++)
		{
			*digit = number[i+j];
			prod *= atoi(digit); 
		}
		//compare product to current maximum
		if(prod >= max_prod) max_prod = prod;
	}
	printf("Maximum product = %d", max_prod);
	getchar();
}

